Simultaneous sparse approximation via greedy pursuit.
Joel A. TroppAnna C. GilbertMartin J. StraussPublished in: ICASSP (5) (2005)
Keyphrases
- orthogonal matching pursuit
- sparse approximation
- linear combination
- sparse coding
- noise model
- sparse representation
- gaussian process
- compressed sensing
- greedy algorithm
- convex relaxation
- feature selection
- marginal likelihood
- natural images
- image patches
- image classification
- graphical models
- least squares
- semi supervised
- machine learning